Another major element map for #ThinSectionThursday. This one a flow-banded ignimbrite full of quartz and feldspar from central #Arran. pic.twitter.com/Vyr2OPN2Wj
— Bob Gooday (@BobGooday) August 30, 2018
via Twitter https://twitter.com/BobGooday
August 30, 2018 at 01:54PM
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